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Ejection of Particles from Comet Lexell: The Gravitational Influence of Jupiter

Published online by Cambridge University Press:  12 April 2016

M. Kresáková ,
A. Carusi  and
G.B. Valsecchi
M. Kresáková
Affiliation:
Astronomical Institute - S.A.V., Bratislava
A. Carusi
Affiliation:
I.A.S. - Reparto planetologia, Roma
G.B. Valsecchi
Affiliation:
I.A.S. - Reparto planetologia, Roma

Extract

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The orbital evolution of comet P/Lexell has been characterized by a sequence of three close planetary encounters within 12 years; the first of these encounters was with Jupiter, 1767, and lead to a reduction of the perihelion distance from 2.9 AU to 0.67 AU. Then the comet encountered the Earth at a distance of 0.015 AU, in 1770, and was discovered. The final, very close encounter with Jupiter, in 1779, removed the comet from observability, sending it into an orbit of perihelion distance in excess of 5 AU (Kazimirchak-Polonskaya, 1967).

Type
Part II - Comets and Meteor Streams
Information
International Astronomical Union Colloquium , Volume 74: Dynamical Trapping and Evolution in the Solar System , 1983 , pp. 105 - 106
Copyright
Copyright © Reidel 1983

References

Kazimirchak-Polonskaya, E.I.: 1967, Sov. Astron. – A.J. 11, pp. 349–365.Google Scholar
Kresáková, M.: 1980, Bull. Astron. Inst. Czechosl. 31, pp. 193–206.Google Scholar